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CVE-2013-4402

16
FAUCET Score

CVE-2013-4402 describes a denial-of-service vulnerability in GnuPG versions 1.4.x before 1.4.15 and 2.0.x before 2.0.22, affecting products like Canonical GnuPG and Ubuntu Linux. The flaw resides in the compressed packet parser, allowing remote attackers to trigger infinite recursion via a specially crafted OpenPGP message. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), this vulnerability is easily exploitable over the network with low attack complexity, leading to a denial of service. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.0CPE matchmatch criteria
cpe:2.3:a:gnupg:gnupg:1.4.0:*:*:*:*:*:*:*
1.4.2CPE matchmatch criteria
cpe:2.3:a:gnupg:gnupg:1.4.2:*:*:*:*:*:*:*
1.4.3CPE matchmatch criteria
cpe:2.3:a:gnupg:gnupg:1.4.3:*:*:*:*:*:*:*
1.4.4CPE matchmatch criteria
cpe:2.3:a:gnupg:gnupg:1.4.4:*:*:*:*:*:*:*
1.4.5CPE matchmatch criteria
cpe:2.3:a:gnupg:gnupg:1.4.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.03%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0503 is in the 88th percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnupg-0:1.4.5-18.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnupg2-0:2.0.10-6.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: gnupg2-0:2.0.14-6.el6_4
View patch
ubuntuvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-4402Moderate

GnuPG: infinite recursion in the compressed packet parser DoS

Oct 5, 2013

References

bugs.debian.org / cgi-bin/bugreport.cgi
lists.gnupg.org / pipermail/gnupg-announce/2013q4/000333.html
Vendor Advisory
lists.gnupg.org / pipermail/gnupg-announce/2013q4/000334.html
Vendor Advisory
lists.opensuse.org / opensuse-updates/2013-10/msg00020.html
lists.opensuse.org / opensuse-updates/2013-10/msg00025.html
rhn.redhat.com / errata/RHSA-2013-1459.html
bugzilla.redhat.com / show_bug.cgi
debian.org / security/2013/dsa-2773
debian.org / security/2013/dsa-2774
ubuntu.com / usn/USN-1987-1
Vendor Advisory